Do you like swimming ?   Yes . Swimming is one of my most favorite sports , indoors or out-doors .   Me too . Swimming is a very good exercise for health . It combines water , bath , sunbath , and air bath together . It promotes the growth and haleness of muscles , bone , viscera and nerve systems .   I have never thought that swimming can bring us so many benefits . I only know that swimming in great waves and deep running water can train people's spirits , and enable people to be fearless of the hardships , dangers and difficulties and become brave and staunch .   Have you ever swum in a river or a lake ?   Yes , but not always . However , I won't let it go if I have a chance . 